Add ARJ, ARC, and ACE archive decompression support#194

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Copilot wants to merge 8 commits intomainfrom

copilot/reimplement-arj-arc-changes

Commits on Feb 6, 2026

Initial plan
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Add ARJ, ARC, ACE support and update agent instructions for NBGV deep clone requirement

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gfs
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Fix ACE test data file CRC and restore nuget.config

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Improve ACE resource governor check to validate before decompression

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Fix DetectFileType regression: read min(length, buffer) bytes and gate each signature check on bytes actually read

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Fix encrypted 7z stream position after SharpCompress 0.44.5 upgrade

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Add FailedArchive status assertions to count-only test methods

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Refactor entry stream handling in ACE, ARC, and ARJ extractors to use 'using' statements for better resource management
gfs
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